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The genes underlying the process of speciation.
1Department of Ecology and Evolutionary Biology, University of Boulder, CO 80309, USA. patrik.nosil@cororado.edu
Trends in Ecology & Evolution
|February 12, 2011
Summary
Researchers are identifying genes responsible for reproductive isolation, a key factor in speciation. Defining and rigorously characterizing
Area of Science:
- Evolutionary biology
- Genetics
- Speciation research
Background:
- Identifying genes that cause reproductive isolation is a long-standing goal in evolutionary biology.
- Linking genetic factors to the speciation process requires precise definitions and characterization methods.
Purpose of the Study:
- To propose a clear definition for 'speciation gene' that links genetics to the process of speciation.
- To outline criteria for characterizing speciation genes.
Main Methods:
- Defining 'speciation gene' as any gene contributing to the evolution of reproductive isolation.
- Establishing criteria for characterization: effect on reproductive isolation, pre-speciation divergence, and effect size quantification.
- Reviewing candidate speciation genes against these criteria.
Main Results:
- Few candidate speciation genes currently meet the proposed rigorous criteria for characterization.
- The proposed definition and criteria provide a framework for future research.
Conclusions:
- Rigorous characterization of speciation genes is essential for understanding their prevalence and properties.
- Improved characterization will elucidate how these genes influence genome-wide divergence patterns during speciation.
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